, that they claim are effective, could be used by us, too,safer and less expensive. the bottom line is, that -- i'll give you a list of the most commonly used ones, and, generally speaking, i have to say, that many of them do work to some extent and, if you are so motivated, you should try them. the first one, is dhea. that is a components of the sex hormones and may work, especially if men, with low testosterone levels. the problem with it is sometimes it lowers the good hdl and can cause acne. the next problem -- next i wish i could read it on the screen. is... horny -- excuse the expression, horny goat weed. a real drug and it may help also. the problem with horny goat weed which you can get at a health food store, is that we're not sure how about safe it is, and what the side effects are and i would be careful with that particular drug. the next one is folic acid. if you take a lot of extra folic acid and vitamin e, that may help but, be sure the not to take too much. it is particularly helpful if you are taking viagra. it may increase, improve the effects of via